Recommendations/experiences with spray foam for existing shop

[ultrarunner]

With the plastic sheet panel separation one benefit is lost and that’s glueing the members together here in earthquake country… at least this a pitch I’ve heard.

 

[paulsharvey]

The biggest thing with rigid foam, depending on how the metal shop is framed.

Is it a red iron PEMB,.a fairly typical tube type frame, and if so, is it vertical-vertical; horizontal-horizontal; or vertical roof and horizontal walls? Is it a quonset hut style?

So, with red iron, you would have a (pretty) consistent spacing purlon to purlon , but they do sag, so still, going to be some rips, and then spray can filled gaps.

But the biggest problems is holding the foam. You can't screw it through the metal panels. Maybe you could screw it to a hat channel, or similar, or use liquid nails to glue it directly to the inside of the panels; but you still have those gaps, coorigations, ect

 

[WinterDeere]

Sounds like a huge time suck for a solution that's ultimately a kludge. I'd just drop the coin and get it spray-foamed by a pro. I don't regret having mine done, my heating and cooling costs on that 1200 sq.ft. are so small that we didn't even notice any change in our overall home energy costs after installing HVAC in the shop. I doubt I'd be able to claim that with any of these other jury-rigged solutions.